model.param.define {RGeostats}

R Documentation

Specification of the Model Parameter

Description

Specification of the Model Parameters

Usage

model.param.define(rank.model, rank.db, nostat = NULL, verbose=FALSE)

Arguments

rank.model	Rank of the slot to which the model has been assigned
rank.db	Rank of the slot of the Db which contains the non-stationary information
nostat	Array of non-valuated keywords which define the set of Non-stationary parameters. For details see model.decode.
verbose	Verbose flag

Details

An array of such keywords can be specified for particular usage:

• To designate the 'variable' parameter of the Model in the case of Moving Geostatistics.

• To designate the list of constraints applied during the automatic inference of the parameters of a Model:

  • Initial value of a parameter

  • Lower or Upper bounds for a parameter definition interval

  • Value assigned to a parameter

To check that the constraints have been defined correctly, use the 'verbose' option of model.auto function

Next follow some examples:

• Case of a isotropic model with 1 spherical structure: its range must be equal to 10: model.auto(vario,struct=3,equal="R=10")

• Case of an isotropic model with 2 structure (exponential, spherical): the range of the spherical must lie between 2 and 3: model.auto(vario.struct=c(2,3),lower="M2R=2",upper="M2R=3")

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